on *:TEXT:!defineworld*:#: { 
  if (($nick isreg $chan || $nick isvoice $chan )) { halt } 
  elseif ($chan == #pestops) set %pcworld $2- 
  msg #pest 14~ 7The current Pest Control world has changed! Type !world to see it 14~
}

on *:TEXT:!world*:#: { 
  if ($nick isreg $chan) { halt } 
else notice $nick 14~ 13The current #Pest world is %pcworld 14~ } 
}